Stop 03 · SQL for Data AnalysisProjects · 1/2
Write 20 SQL Queries Against a Sample Database
Part of the Data Analyst Roadmap
In short
Deliberate practice reps — work through a public sample database (e.g. a Chinook or Northwind-style dataset) writing queries of increasing complexity.
How to learn this
- 1Download a free sample database and load it into a local SQL environment.
- 2Write 20 questions ranging from basic SELECTs to multi-table joins with CTEs.
- 3Check each answer against a second approach to confirm you got it right.
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